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Aktuelle Fachpublikationen

Genetic engineering of untransformable coagulase-negative staphylococcal pathogens

Nature Protocols 11, 949 (2016). doi:10.1038/nprot.2016.058 Authors: Volker Winstel, Petra Kühner, Holger Rohde & Andreas Peschel Coagulase-negative staphylococci (CoNS) are recognized as significant opportunistic pathogens. However, current knowledge of virulence mechani ... mehr

Formic and Acetic Acids in Degradation Products of Plant Volatiles Elicit Olfactory and Behavioral Responses from an Insect Vector

Volatile phytochemicals play a role in orientation by phytophagous insects. We studied antennal and behavioral responses of the Asian citrus psyllid, Diaphorina citri, vector of the citrus greening disease pathogen. Little or no response to citrus leaf volatiles was detected by electroanten ... mehr

How Many and Which Odor Identification Items Are Needed to Establish Normal Olfactory Function?

The establishment of normal olfactory function by means of a simple and reliable test is one method that could minimize olfactory test procedures in the clinic. This retrospective study analyzed the identification of 16 odors by 613 subjects (aged 18–96 years, 266 men) as a part of a comple ... mehr

Olfactory Dysfunction in Older Adults is Associated with Feelings of Depression and Loneliness

Olfactory dysfunction is a common complaint among physician visits. Olfactory loss affects quality of life and impairs function and activities of daily living. The purpose of our study was to assess the degree of odor identification associated with mental health. Olfactory function was meas ... mehr

Trimethylamine—The Extracorporeal Envoy

One of the most widespread and efficient mechanisms that has evolved to enable communication between discrete and spatially separate living organisms is the use of specific chemical messengers. The organoleptic properties of certain molecules, even at concentrations that do not necessarily ... mehr

Alle Fachpublikationen

Determination of tantalum from tantalum oxide nanoparticle X-ray/CT contrast agents in rat tissues and bodily fluids by ICP-OES

Accurate and precise means for quantifying Ta in tissues, bodily fluids, and bone is critical in understanding anticipated safety-profiles for tantalum oxide (TaO) nanoparticle-based X-ray/CT diagnostic imaging agents and has prompted the development of three digestion methods which are the ... mehr

Chemotaxis-driven assembly of endothelial barrier in a tumor-on-a-chip platform

The integration of three-dimensional micropatterning with microfluidics provides a unique opportunity to create perfusable tissue constructs in vitro. Herein, we have used this approach to create a tumor-on-a-chip with an endothelial barrier. Specifically, we photopatterned a mixture of end ... mehr

Automated Sample Preparation in a Microfluidic Cell Culture Device for Metabolomic Analyses

Sample pretreatment in conventional cellular metabolomics entails rigorous lysis and extraction steps which increase the duration as well as limit the consistency of these experiments. We report a biomimetic cell culture microfluidic device (MFD) which is coupled with an automated system fo ... mehr

Gel integration for microfluidic applications

Molecular diffusive membranes or materials are important for biological applications in microfluidic systems. Hydrogels are typical materials that offer several advantages, such as free diffusion for small molecules, biocompatibility with most cells, temperature sensitivity, relatively low ... mehr

The effect of thermal processing on the behaviour of peanut allergen peptide targets used in multiple reaction monitoring mass spectrometry experiments

Mass spectrometry-based methods offer an alternative means of determining allergens in foods. Whilst targeted methods are likely to offer the most robust approach for detection and quantification, little is known about how food processing may affect the behaviour of peptide targets. A syste ... mehr

Alle Fachpublikationen zu Analytik

Formic and Acetic Acids in Degradation Products of Plant Volatiles Elicit Olfactory and Behavioral Responses from an Insect Vector

Volatile phytochemicals play a role in orientation by phytophagous insects. We studied antennal and behavioral responses of the Asian citrus psyllid, Diaphorina citri, vector of the citrus greening disease pathogen. Little or no response to citrus leaf volatiles was detected by electroanten ... mehr

How Many and Which Odor Identification Items Are Needed to Establish Normal Olfactory Function?

The establishment of normal olfactory function by means of a simple and reliable test is one method that could minimize olfactory test procedures in the clinic. This retrospective study analyzed the identification of 16 odors by 613 subjects (aged 18–96 years, 266 men) as a part of a comple ... mehr

Olfactory Dysfunction in Older Adults is Associated with Feelings of Depression and Loneliness

Olfactory dysfunction is a common complaint among physician visits. Olfactory loss affects quality of life and impairs function and activities of daily living. The purpose of our study was to assess the degree of odor identification associated with mental health. Olfactory function was meas ... mehr

Trimethylamine—The Extracorporeal Envoy

One of the most widespread and efficient mechanisms that has evolved to enable communication between discrete and spatially separate living organisms is the use of specific chemical messengers. The organoleptic properties of certain molecules, even at concentrations that do not necessarily ... mehr

Changes in Olfactory Receptor Expression Are Correlated With Odor Exposure During Early Development in the zebrafish (Danio rerio)

We have previously shown that exposure to phenyl ethyl alcohol (PEA) causes an increase in the expression of the transcription factor otx2 in the olfactory epithelium (OE) of juvenile zebrafish, and this change is correlated with the formation of an odor memory of PEA. Here, we show that th ... mehr

Alle Fachpublikationen zu Chemie

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 376 (April 2016). doi:10.1038/labinvest.2016.41 mehr

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 262 (March 2016). doi:10.1038/labinvest.2016.29 mehr

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 114 (February 2016). doi:10.1038/labinvest.2015.165 mehr

Canonical Wnt signaling in systemic sclerosis

Canonical Wnt signaling in systemic sclerosis Laboratory Investigation advance online publication, January 11 2016. doi:10.1038/labinvest.2015.154 Authors: Christina Bergmann & Jörg H W Distler mehr

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 2 (January 2016). doi:10.1038/labinvest.2015.146 mehr

Alle Fachpublikationen zu Labortechnik

Cover Chem. Eng. Technol. 5/2016

Abstract China is an ancient country offering many great inventions and engineering works, such as paper‐making and the Great Wall. However, for China's young chemical industry, the research and development of advanced technologies is still on the way. Five typical chemical engineering a ... mehr

A Comparative Study of Clogging in Valve and Cascade Mixers

Abstract A cascade mixer and a valve mixer were applied for the precipitation of CaCO3. This model reaction has been used for benchmarking the both mixer types with respect to their robustness against fouling. It has been found that the valve mixer was much less susceptible to fouling an ... mehr

Polyamide 6 nanocomposites incorporating cellulose nanocrystals prepared by In‐situ ring opening polymerization: Viscoelasticity, creep behavior, and melt rheological properties

The creep behavior and solid and melt linear viscoelasticity of novel polyamide 6 (PA6) nanocomposites reinforced with cellulose nanocrystals (CNCs) prepared via in situ anionic ring‐opening polymerization (ROP) were investigated to accelerate research efforts to develop new polymeric mater ... mehr

Antifungal properties of chitosan–cobalt(II) complex and its potential on the suppression of damping‐off in cucumber seedlings

Abstract Chitosan–cobalt(II) complex (CTS–Co) was prepared by the complexation of chitosan with cobalt(II) ions. Fourier transform infrared spectra showed that the amine and secondary –OH groups of chitosan were involved in the complexation with Co(II) ions. The resultant CTS–Co exhibite ... mehr

Modeling efforts in the key areas of thermal management and safety of lithium ion battery cells: a mini review

Abstract Lithium ion batteries (LIBs) are no doubt a primary power source for numerous applications around us. Therefore, it is intrinsic to be long lasting and safe during operation—two issues that are tackled by thermal management. The purpose of this article is to enable the reader to ... mehr

Alle Fachpublikationen zu Verfahrenstechnik

Re-analysis of Narcotic Critical Body Residue Data using Equilibrium Distribution Concept and Refined Partition Coefficients

Narcosis occurs as a result of accumulation of chemicals in phospholipid membrane. The toxic threshold concentration in membrane is thought to be relatively constant across different chemicals and species. Hence, estimating chemical concentrations in membrane is expected to reduce the varia ... mehr

Prolonged exposure to arsenic in UK private water supplies: toenail, hair and drinking water concentrations

Chronic exposure to arsenic (As) in drinking water is an established cause of cancer and other adverse health effects. Arsenic concentrations mehr

Investigation on atmospheric PM2.5-borne PAHs in Eastern cities of China: concentration, source diagnosis and health risk assessment

This study has investigated on PM2.5-PAHs associations collected from Beijing, Jinan and Shanghai in Eastern China. Results indicated that PM2.5 concentrations of Beijing, Jinan, and Shanghai were 125.71 μg m-3 (18.59~355.53 μg m-3), 115.91 μg m-3 (44.21~345.39 μg m-3) and 85.13 μg m-3 (24. ... mehr

PAH source identification, apportionment and toxicity for the indoor and outdoor PM2.5 airborne airborne particulates in a region characterised by wood burning

The occurrence of airborne particulate matter has been flagged as “of concern” in several megacities, especially in Asia. Selected Chilean regions have similar problems as wood burning is the major source of heating in homes. This concern has led to mitigation measures restricting the burni ... mehr

Sustainability, Vol. 8, Pages 405: Urban Resilience in Climate Change Adaptation: A Conceptual Framework

This study presents a conceptual framework for analyzing urban resilience in the context of climate change. The key conceptual elements of resilience are first identified and then reorganized with a focus on cities and climate change adaptation. This study covers not only ecological and eng ... mehr

Alle Fachpublikationen zu Umwelttechnik
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